None other than Sifu Dan Inosanto. Since Sigung Lee's death Dan has made it his life long passion to pass on Bruce's teachings and philosophies. Most of those out there that are JKD'ers today have only came to light thru Dan Inosanto. Yes in the last 25yrs new names, old names, same names have come alight and praised JKD as the only true system. We have alot of people that have helped contribute to JKD.
Larry Hartsell, Steve Golden, Pat Strong, Tim Tackett, Taky Kimura and his son Andy, Jerry Poteet, these to name a few. A couple off the top of my head of the JKDC group im sure Vunak, Burton Richardson, and some others. Then you have the groups like the Progressive fighting Systems people, the Combative Solutions groups, Straight Blast Gym and their gorillas. and the small timers w/ no names like most of us on here. And of course you can't forget those that have squashed the name of JKD like those of Gary Dill, Lamar Davis, Ron Prather. JKD has all grown but thru only one Man and that has to go back to Guro/Sifu Dan Inosanto. Its up to us as to keep it strong and proper. If it is going to stay running for another 30yrs.
JUST my opinion.
thanks